气候变化领域集成服务门户(CCPortal): Experimental and Numerical Simulation Study on the Influence of Fracture Distribution on Gas Channeling in Ultralow-Permeability Reservoirs

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DOI	10.1061/(ASCE)EY.1943-7897.0000811
	Experimental and Numerical Simulation Study on the Influence of Fracture Distribution on Gas Channeling in Ultralow-Permeability Reservoirs
	Zhang, Juan; Huang, Quanhua; Xu, Feng; Zhao, Zhongjun; Meng, Xuemin; Zhang, Xiaohui
通讯作者	Zhang, J (通讯作者)，Xian Shiyou Univ, Earth Sci & Engn, Xian 710000, Shaanxi, Peoples R China. ; Zhang, J (通讯作者)，Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Lanzhou 730000, Peoples R China. ; Zhang, J (通讯作者)，Key Lab Petr Resources Res, Lanzhou 730000, Gansu, Peoples R China.
发表日期	2022
ISSN	0733-9402
EISSN	1943-7897
卷号	148 期号:1
英文摘要	Fracture development in ultralow-permeability reservoirs results in gas channeling and lower oil recovery during CO2 flooding. In this study, the physical properties of a light oil-CO2 system were experimented, the physical properties subsequently simulated, and the effects of fracture distribution on gas channeling analyzed using the fracture mechanism model. Then, a geological reservoir model with added hydraulic fractures was used to predict CO2 injection. It is shown that gas channeling time was affected by the fracture angle and the distance between the production well fracture and injection well fracture. First, set Y (north) direction as 0 degrees, keep the angle of the production well fracture unchanged, and only change the angle of the injection well fracture. In this case, a smaller angle of the gas injection well fracture resulted in more gas sweep area and gas channeling more delayed. Second, keep the injection well fracture angle constant and only change the angle of the production well fracture; in this regard, two cases are considered. The one is when the injection well fracture angle is smaller than 45 degrees ; in this case, the effect of distance between the production and injection fractures is more than production pressure difference, the distance between the production and injection fractures is greater, the gas sweep area is larger, and the gas channeling is later. The other is when the injection well fracture angle is greater than 45 degrees, which results in a closer distance between the production well and injection well fractures and affects the gas channeling less than the production pressure difference. Third, the angle between the gas flooding direction (along X) and the production well fracture is greater, the production pressure difference is more homogeneous, and the gas channeling is later. In the geological model without connected fractures, CO2 flooding achieved gas channeling all over the study area after 7.5 years under the effect of distance between the production and injection fractures and the production pressure difference. The cumulative oil increase is 2.32 millon standard barrel (MSTB) after 20 years.(C) 2021 American Society of Civil Engineers.
关键词	ENHANCED OIL-RECOVERY HUFF-N-PUFF CO2 INJECTION PERFORMANCE EVALUATION POROUS-MEDIA SEQUESTRATION MISCIBILITY STORAGE PHASE BASIN
英文关键词	Fracture pattern; Ultralow permeability; CO2; flooding; Gas channeling
语种	英语
WOS研究方向	Energy & Fuels ; Engineering
WOS类目	Energy & Fuels ; Engineering, Civil
WOS记录号	WOS:000730389300005
来源期刊	JOURNAL OF ENERGY ENGINEERING
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/254435
作者单位	[Zhang, Juan] Xian Shiyou Univ, Earth Sci & Engn, Xian 710000, Shaanxi, Peoples R China; [Zhang, Juan] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Lanzhou 730000, Peoples R China; [Zhang, Juan] Key Lab Petr Resources Res, Lanzhou 730000, Gansu, Peoples R China; [Huang, Quanhua] Southwest Petr Univ, Petr Engn Inst, Chengdu 610000, Sichuan, Peoples R China; [Xu, Feng] China Natl Oil & Gas Explorat & Dev Co Ltd, Beijing 100034, Peoples R China; [Zhao, Zhongjun] PetroChina, Changbei Operat Co, Changqing Oilfield Branch Co, Fengcheng 8 Rd, Xian 710000, Shaanxi, Peoples R China; [Meng, Xuemin] PetroChina, Tarim Oilfield Branch Co, Explorat & Dev Res Inst, Petrochem Rd, Korla 8410000, Xinjiang, Peoples R China; [Zhang, Xiaohui] PetroChina, Changqing Oilfield Branch Co, Explorat & Dev Res Inst, Fengcheng 4 Rd, Xian 710000, Shaanxi, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Juan,Huang, Quanhua,Xu, Feng,et al. Experimental and Numerical Simulation Study on the Influence of Fracture Distribution on Gas Channeling in Ultralow-Permeability Reservoirs[J]. 中国科学院西北生态环境资源研究院,2022,148(1).
APA	Zhang, Juan,Huang, Quanhua,Xu, Feng,Zhao, Zhongjun,Meng, Xuemin,&Zhang, Xiaohui.(2022).Experimental and Numerical Simulation Study on the Influence of Fracture Distribution on Gas Channeling in Ultralow-Permeability Reservoirs.JOURNAL OF ENERGY ENGINEERING,148(1).
MLA	Zhang, Juan,et al."Experimental and Numerical Simulation Study on the Influence of Fracture Distribution on Gas Channeling in Ultralow-Permeability Reservoirs".JOURNAL OF ENERGY ENGINEERING 148.1(2022).